What are potential pitfalls of using file_get_contents and preg_match in PHP loops for data extraction?

Using file_get_contents and preg_match in PHP loops for data extraction can lead to performance issues and potential errors if not handled properly. It is recommended to use more efficient methods like cURL for fetching remote data and parsing HTML, and a dedicated HTML parser like DOMDocument or SimpleHTMLDom for extracting specific data from the HTML content. 

// Example of using cURL and DOMDocument for data extraction
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, 'https://example.com');
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
$html = curl_exec($curl);
curl_close($curl);

$dom = new DOMDocument();
@$dom->loadHTML($html);

// Extract data using DOMDocument methods

Keywords

file_get_contents preg_match PHP loops data extraction pitfalls

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